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3 years ago

Why is epoxy resin SOOOOO tough that there are so few corrosive compounds that dissolve it?

1 answer:

5 0

well the epoxy is made from a poly chain type molecule that can hold its bonds strong with a additional setting agent that is non corrosive something like a compound similar to gold being non corrosive to many compounds like muriatic or nitric acid. when bonded together they make a touch and strong bond I'm not sure the name but there are forces that cant be broke by acid or corrosive compounds it makes the substance inert or non reactive.

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Weak acids

maria [59]

Answer:

congratulations you have made cocaine

3 0

3 years ago

When air bags inflate, nitrogen gas is formed from sodium azide, along with solid sodium. what reaction category is this?

adell [148]

The answer is
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7 0

3 years ago

Consider the following unbalanced chemical equation. C5H12(l) + O2(g) → CO2(g) + H2O(l) If 21.9 grams of pentane (C5H12) are bur

Marina CMI [18]

Answer : The mass of water produced will be 32.78 grams.

Explanation : Given,

Mass of $C_5H_{12}$ = 21.9 g

Molar mass of $C_5H_{12}$ = 72.15 g/mole

Molar mass of $H_2O$ = 18 g/mole

First we have to calculate the moles of $C_5H_{12}$ .

$\text{Moles of }C_5H_{12}=\frac{\text{Mass of }C_5H_{12}}{\text{Molar mass of }C_5H_{12}}=\frac{21.9g}{72.15g/mole}=0.3035moles$

Now we have to calculate the moles of $H_2O$ .

The balanced chemical reaction will be,

$C_5H_{12}(l)+8O_2(g)\rightarrow 5CO_2(g)+6H_2O(l)$

From the balanced reaction we conclude that

As, 1 mole of $C_5H_{12}$ react to give 6 moles of $H_2O$

So, 0.3035 moles of $C_5H_{12}$ react to give $0.3035\times 6=1.821$ moles of $H_2O$

Now we have to calculate the mass of $H_2O$ .

$\text{Mass of }H_2O=\text{Moles of }H_2O\times \text{Molar mass of }H_2O$

$\text{Mass of }H_2O=(1.821mole)\times (18g/mole)=32.78g$

Therefore, the mass of water produced will be 32.78 grams.

3 0

3 years ago

6. Write a balanced equation for each reaction. You must change each word equation into a chemical equation with actual formulas

leva [86]

The answer is in the pic!

4 0

3 years ago

What controls the electrical properties of the atom? the valence electron is referred to as a __________ ? when silicon atoms co

Drupady [299]

<span>It is the valence orbit that controls the electrical properties of the atom. The valence electron is referred to as a "free electron.' Valence electrons have the highest energy of all electrons in an atom; they are also the most reactive, meaning they are usually the electrons involved in bonding. When silicon atoms combine to form a solid, they arrange themselves into an orderly pattern called a crystal.</span>

7 0

3 years ago